18287908504932 has 48 divisors (see below), whose sum is σ = 46553197565952. Its totient is φ = 5541533582880.

The previous prime is 18287908504907. The next prime is 18287908504933. The reversal of 18287908504932 is 23940580978281.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (18287908504933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342688 + ... + 6057495.

It is an arithmetic number, because the mean of its divisors is an integer number (969858282624).

Almost surely, 2^{18287908504932} is an apocalyptic number.

18287908504932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18287908504932 is an abundant number, since it is smaller than the sum of its proper divisors (28265289061020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18287908504932 is a wasteful number, since it uses less digits than its factorization.

18287908504932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421848 (or 6421846 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 18287908504932 in words is "eighteen trillion, two hundred eighty-seven billion, nine hundred eight million, five hundred four thousand, nine hundred thirty-two".